<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>01_CSS的三种位置</title>
    <link rel="stylesheet" href="01.css">
    <style>
      p {
        color: brown;
      }
      div {
          background-color: chocolate;
      }
      h2 {
          color: khaki;
      }
    </style>
</head>
<body>
<h2 style="color: brown">我是标题</h2>
<h4 style="color: blue">我是标题</h4>
<h4>我是标题</h4>
<h4>我是标题</h4>

<p>我是段落</p>
<p>我是段落</p>
<p>我是段落</p>

<div>我是块级元素</div>
<div>我是块级元素</div>
<div>我是块级元素</div>
</body>
</html>